Animista
animista.net
An interactive CSS animation playground with a library of pre-built animations — entrance, exit, attention, text, and background effects — where you adjust parameters and copy the generated CSS.
Why it is useful
Eliminates CSS animation keyframe writing for common effects. You can preview every animation in real time, adjust duration, delay, and easing, then copy the exact CSS you need. Far more practical than reading animation documentation and writing keyframes from scratch. The generated code is clean and production-ready, not wrapped in utility classes.